/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert06.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 10:33:12,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 10:33:12,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 10:33:12,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 10:33:12,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 10:33:12,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 10:33:12,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 10:33:12,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 10:33:12,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 10:33:12,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 10:33:12,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 10:33:12,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 10:33:12,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 10:33:12,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 10:33:12,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 10:33:12,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 10:33:12,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 10:33:12,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Lockstep.epf [2021-07-01 10:33:12,586 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 10:33:12,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 10:33:12,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 10:33:12,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 10:33:12,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 10:33:12,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 10:33:12,589 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 10:33:12,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 10:33:12,589 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 10:33:12,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 10:33:12,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 10:33:12,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 10:33:12,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 10:33:12,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 10:33:12,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 10:33:12,590 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 10:33:12,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 10:33:12,590 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 10:33:12,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 10:33:12,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 10:33:12,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 10:33:12,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 10:33:12,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 10:33:12,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 10:33:12,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 10:33:12,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 10:33:12,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 10:33:12,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 10:33:12,591 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-01 10:33:12,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 10:33:12,592 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 10:33:12,592 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 10:33:12,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 10:33:12,592 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-01 10:33:12,592 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 10:33:12,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 10:33:12,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 10:33:12,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 10:33:12,868 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 10:33:12,869 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 10:33:12,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert06.bpl [2021-07-01 10:33:12,870 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert06.bpl' [2021-07-01 10:33:12,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 10:33:12,896 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 10:33:12,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 10:33:12,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 10:33:12,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 10:33:12,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:12" (1/1) ... [2021-07-01 10:33:12,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:12" (1/1) ... [2021-07-01 10:33:12,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 10:33:12,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 10:33:12,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 10:33:12,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 10:33:12,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:12" (1/1) ... [2021-07-01 10:33:12,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:12" (1/1) ... [2021-07-01 10:33:12,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:12" (1/1) ... [2021-07-01 10:33:12,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:12" (1/1) ... [2021-07-01 10:33:12,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:12" (1/1) ... [2021-07-01 10:33:12,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:12" (1/1) ... [2021-07-01 10:33:12,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:12" (1/1) ... [2021-07-01 10:33:12,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 10:33:12,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 10:33:12,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 10:33:12,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 10:33:12,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 10:33:13,003 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 10:33:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 10:33:13,004 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 10:33:13,004 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 10:33:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 10:33:13,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 10:33:13,004 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 10:33:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 10:33:13,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 10:33:13,005 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 10:33:13,165 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 10:33:13,165 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 10:33:13,165 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 10:33:13,166 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:33:13 BoogieIcfgContainer [2021-07-01 10:33:13,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 10:33:13,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 10:33:13,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 10:33:13,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 10:33:13,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:12" (1/2) ... [2021-07-01 10:33:13,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d91933 and model type bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:33:13, skipping insertion in model container [2021-07-01 10:33:13,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:33:13" (2/2) ... [2021-07-01 10:33:13,171 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert06.bpl [2021-07-01 10:33:13,175 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 10:33:13,175 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 10:33:13,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 10:33:13,175 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 10:33:13,202 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 10:33:13,217 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 10:33:13,288 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:33:13,288 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:33:13,288 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:33:13,288 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:33:13,288 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:33:13,289 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:33:13,289 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:33:13,289 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 10:33:13,349 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:13,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:13,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1724388391, now seen corresponding path program 1 times [2021-07-01 10:33:13,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:13,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298272140] [2021-07-01 10:33:13,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:13,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 10:33:13,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:13,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298272140] [2021-07-01 10:33:13,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298272140] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:33:13,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:33:13,473 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 10:33:13,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411916161] [2021-07-01 10:33:13,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 10:33:13,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:13,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 10:33:13,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 10:33:13,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:13,487 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:13,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:13,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:13,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:13,530 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 10:33:13,530 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:13,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:13,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1029266953, now seen corresponding path program 1 times [2021-07-01 10:33:13,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:13,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983238347] [2021-07-01 10:33:13,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:13,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 10:33:13,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:13,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983238347] [2021-07-01 10:33:13,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983238347] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:33:13,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:33:13,548 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 10:33:13,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642486414] [2021-07-01 10:33:13,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 10:33:13,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:13,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 10:33:13,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 10:33:13,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:13,550 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:13,550 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:13,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:13,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:13,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:13,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 10:33:13,761 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:13,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:13,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1844135425, now seen corresponding path program 1 times [2021-07-01 10:33:13,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:13,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928914408] [2021-07-01 10:33:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:13,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 10:33:13,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:13,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928914408] [2021-07-01 10:33:13,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928914408] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:13,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785635312] [2021-07-01 10:33:13,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:13,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-01 10:33:13,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:13,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 10:33:13,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785635312] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:13,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:13,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2021-07-01 10:33:13,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694902304] [2021-07-01 10:33:13,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-01 10:33:13,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:13,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-01 10:33:13,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-07-01 10:33:13,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:13,970 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:13,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:13,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:13,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:13,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:14,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:14,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:14,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:14,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:14,436 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:14,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:14,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1402863495, now seen corresponding path program 1 times [2021-07-01 10:33:14,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:14,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709180355] [2021-07-01 10:33:14,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:14,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 10:33:14,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:14,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709180355] [2021-07-01 10:33:14,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709180355] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:14,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382541111] [2021-07-01 10:33:14,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:14,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-01 10:33:14,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 10:33:14,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382541111] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:14,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:14,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-07-01 10:33:14,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148265544] [2021-07-01 10:33:14,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 10:33:14,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:14,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 10:33:14,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-01 10:33:14,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:14,632 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:14,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:14,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:14,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:14,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:14,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:14,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:14,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:14,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:14,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:14,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:14,943 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:14,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:14,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1450565004, now seen corresponding path program 1 times [2021-07-01 10:33:14,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:14,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519655878] [2021-07-01 10:33:14,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:14,996 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 10:33:14,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:14,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519655878] [2021-07-01 10:33:14,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519655878] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:14,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539996317] [2021-07-01 10:33:14,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:15,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-01 10:33:15,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:15,126 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-01 10:33:15,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539996317] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:15,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:15,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 12 [2021-07-01 10:33:15,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764116092] [2021-07-01 10:33:15,127 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-01 10:33:15,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:15,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-01 10:33:15,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-07-01 10:33:15,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:15,128 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:15,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:15,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:15,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:15,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:15,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:15,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:15,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:15,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:15,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:15,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:15,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:15,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:15,704 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:15,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:15,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1798974892, now seen corresponding path program 1 times [2021-07-01 10:33:15,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:15,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082970387] [2021-07-01 10:33:15,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:15,759 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 10:33:15,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:15,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082970387] [2021-07-01 10:33:15,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082970387] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:15,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788127951] [2021-07-01 10:33:15,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:15,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 29 conjunts are in the unsatisfiable core [2021-07-01 10:33:15,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:15,898 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 10:33:15,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788127951] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:15,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:15,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-07-01 10:33:15,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812117290] [2021-07-01 10:33:15,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 10:33:15,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:15,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 10:33:15,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-01 10:33:15,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:15,900 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:15,900 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:15,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:15,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:15,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:15,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:15,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:15,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:16,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:16,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:16,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:16,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:16,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:16,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:16,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-01 10:33:16,297 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:16,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:16,298 INFO L82 PathProgramCache]: Analyzing trace with hash -195622493, now seen corresponding path program 1 times [2021-07-01 10:33:16,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:16,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560161774] [2021-07-01 10:33:16,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 10:33:16,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:16,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560161774] [2021-07-01 10:33:16,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560161774] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:16,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276379646] [2021-07-01 10:33:16,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:16,393 WARN L261 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-01 10:33:16,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-01 10:33:16,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276379646] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:16,479 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:16,479 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 14 [2021-07-01 10:33:16,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528586026] [2021-07-01 10:33:16,479 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-01 10:33:16,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:16,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-01 10:33:16,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-07-01 10:33:16,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:16,480 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:16,480 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 14 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:17,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:17,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:17,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:17,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:17,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:17,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:17,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:17,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:17,455 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:17,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:17,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1399742854, now seen corresponding path program 1 times [2021-07-01 10:33:17,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:17,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266262417] [2021-07-01 10:33:17,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-01 10:33:17,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:17,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266262417] [2021-07-01 10:33:17,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266262417] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:17,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232081737] [2021-07-01 10:33:17,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:17,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-01 10:33:17,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:17,708 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-01 10:33:17,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232081737] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:17,708 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:17,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-07-01 10:33:17,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281559592] [2021-07-01 10:33:17,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 10:33:17,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:17,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 10:33:17,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-01 10:33:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:17,709 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:17,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:17,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:17,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:17,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:17,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:17,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:17,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:17,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:17,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:18,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:18,298 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:18,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:18,298 INFO L82 PathProgramCache]: Analyzing trace with hash 324064275, now seen corresponding path program 1 times [2021-07-01 10:33:18,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:18,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639907686] [2021-07-01 10:33:18,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:18,370 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 10:33:18,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:18,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639907686] [2021-07-01 10:33:18,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639907686] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:18,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783093044] [2021-07-01 10:33:18,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:18,421 WARN L261 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 60 conjunts are in the unsatisfiable core [2021-07-01 10:33:18,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:18,599 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 10:33:18,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783093044] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:18,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:18,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 16 [2021-07-01 10:33:18,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552916919] [2021-07-01 10:33:18,602 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-01 10:33:18,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:18,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-01 10:33:18,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-07-01 10:33:18,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:18,603 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:18,603 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:18,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:18,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:18,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:18,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:18,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:18,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:18,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:18,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:18,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:21,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:21,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:21,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-07-01 10:33:21,295 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:21,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:21,296 INFO L82 PathProgramCache]: Analyzing trace with hash -2135204955, now seen corresponding path program 1 times [2021-07-01 10:33:21,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:21,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650362323] [2021-07-01 10:33:21,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 10:33:21,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:21,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650362323] [2021-07-01 10:33:21,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650362323] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:21,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582566109] [2021-07-01 10:33:21,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:21,410 WARN L261 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 57 conjunts are in the unsatisfiable core [2021-07-01 10:33:21,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:21,488 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 10:33:21,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582566109] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:21,488 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:21,488 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-07-01 10:33:21,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181079137] [2021-07-01 10:33:21,489 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-01 10:33:21,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:21,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-01 10:33:21,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-07-01 10:33:21,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:21,490 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:21,490 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:21,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:21,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:21,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:21,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:21,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:21,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:21,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:21,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:21,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:21,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:22,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:22,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:22,706 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:22,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:22,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1758381964, now seen corresponding path program 1 times [2021-07-01 10:33:22,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:22,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214863657] [2021-07-01 10:33:22,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:22,889 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 10:33:22,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:22,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214863657] [2021-07-01 10:33:22,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214863657] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:22,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451073393] [2021-07-01 10:33:22,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:22,924 WARN L261 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 75 conjunts are in the unsatisfiable core [2021-07-01 10:33:22,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 10:33:23,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451073393] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:23,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:23,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 18 [2021-07-01 10:33:23,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401684304] [2021-07-01 10:33:23,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-01 10:33:23,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:23,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-01 10:33:23,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-07-01 10:33:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:23,066 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:23,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 18 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:23,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:23,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:23,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:23,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:23,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:23,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:23,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:23,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:23,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:23,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:23,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:33,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:33,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:33:33,659 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:33,660 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:33,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:33,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1514286142, now seen corresponding path program 1 times [2021-07-01 10:33:33,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:33,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145635498] [2021-07-01 10:33:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-07-01 10:33:33,785 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:33,785 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145635498] [2021-07-01 10:33:33,785 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145635498] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:33,785 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235914964] [2021-07-01 10:33:33,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:33,898 WARN L261 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 93 conjunts are in the unsatisfiable core [2021-07-01 10:33:33,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:34,054 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-07-01 10:33:34,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235914964] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:34,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:34,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-07-01 10:33:34,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350775721] [2021-07-01 10:33:34,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-01 10:33:34,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:34,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-01 10:33:34,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-07-01 10:33:34,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:34,055 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:34,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:34,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:34,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:34,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:34,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:34,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:34,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:34,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:34,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:34,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:34,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:34,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:33:34,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:33:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-01 10:33:40,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-01 10:33:40,205 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:40,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:40,206 INFO L82 PathProgramCache]: Analyzing trace with hash -87985974, now seen corresponding path program 1 times [2021-07-01 10:33:40,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:40,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729941834] [2021-07-01 10:33:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 66 proven. 52 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-07-01 10:33:40,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:40,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729941834] [2021-07-01 10:33:40,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729941834] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:40,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552620958] [2021-07-01 10:33:40,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:40,419 WARN L261 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 145 conjunts are in the unsatisfiable core [2021-07-01 10:33:40,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-01 10:33:40,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552620958] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:40,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:40,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 20 [2021-07-01 10:33:40,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095487337] [2021-07-01 10:33:40,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-01 10:33:40,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:40,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-01 10:33:40,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2021-07-01 10:33:40,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:40,633 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:40,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 6.0) internal successors, (126), 20 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-01 10:33:40,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:33:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-01 10:33:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:52,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-07-01 10:33:52,133 INFO L301 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-07-01 10:33:52,134 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 10:33:52,139 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:33:52,139 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:33:52,139 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:33:52,139 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:33:52,139 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:33:52,139 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:33:52,139 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:33:52,139 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 10:33:52,854 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2021-07-01 10:33:52,854 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 10:33:52,858 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:33:52 BasicIcfg [2021-07-01 10:33:52,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 10:33:52,858 INFO L168 Benchmark]: Toolchain (without parser) took 39962.90 ms. Allocated memory was 196.1 MB in the beginning and 7.4 GB in the end (delta: 7.2 GB). Free memory was 175.2 MB in the beginning and 6.3 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-07-01 10:33:52,858 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 196.1 MB. Free memory is still 176.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 10:33:52,859 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.61 ms. Allocated memory is still 196.1 MB. Free memory was 175.1 MB in the beginning and 173.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 10:33:52,859 INFO L168 Benchmark]: Boogie Preprocessor took 12.67 ms. Allocated memory is still 196.1 MB. Free memory was 173.3 MB in the beginning and 172.4 MB in the end (delta: 845.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 10:33:52,859 INFO L168 Benchmark]: RCFGBuilder took 226.54 ms. Allocated memory is still 196.1 MB. Free memory was 172.3 MB in the beginning and 159.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-01 10:33:52,859 INFO L168 Benchmark]: TraceAbstraction took 39690.36 ms. Allocated memory was 196.1 MB in the beginning and 7.4 GB in the end (delta: 7.2 GB). Free memory was 158.8 MB in the beginning and 6.3 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-07-01 10:33:52,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 196.1 MB. Free memory is still 176.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 28.61 ms. Allocated memory is still 196.1 MB. Free memory was 175.1 MB in the beginning and 173.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.67 ms. Allocated memory is still 196.1 MB. Free memory was 173.3 MB in the beginning and 172.4 MB in the end (delta: 845.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 226.54 ms. Allocated memory is still 196.1 MB. Free memory was 172.3 MB in the beginning and 159.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 39690.36 ms. Allocated memory was 196.1 MB in the beginning and 7.4 GB in the end (delta: 7.2 GB). Free memory was 158.8 MB in the beginning and 6.3 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3946439, positive: 3600257, positive conditional: 3600257, positive unconditional: 0, negative: 346182, negative conditional: 346182, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 3681497, positive: 3600257, positive conditional: 3600257, positive unconditional: 0, negative: 81240, negative conditional: 81240, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 3681497, positive: 3017640, positive conditional: 0, positive unconditional: 3017640, negative: 663857, negative conditional: 0, negative unconditional: 663857, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 612, positive: 515, positive conditional: 0, positive unconditional: 515, negative: 97, negative conditional: 0, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 612, positive: 432, positive conditional: 0, positive unconditional: 432, negative: 180, negative conditional: 0, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 180, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 97, negative conditional: 0, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3681497, positive: 3017125, positive conditional: 0, positive unconditional: 3017125, negative: 663760, negative conditional: 0, negative unconditional: 663760, unknown: 612, unknown conditional: 0, unknown unconditional: 612] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889, SemanticConditionEliminator.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3142874, positive: 582617, positive conditional: 582617, positive unconditional: 0, negative: 2560257, negative conditional: 627368, negative unconditional: 1932889, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3270, positive: 2094, positive conditional: 2011, positive unconditional: 83, negative: 1176, negative conditional: 1079, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3113, positive: 1953, positive conditional: 1839, positive unconditional: 114, negative: 1159, negative conditional: 1031, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3142874, positive: 580606, positive conditional: 580606, positive unconditional: 0, negative: 2559178, negative conditional: 626289, negative unconditional: 1932889, unknown: 3090, unknown conditional: 3090, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3702, Positive cache size: 2526, Positive conditional cache size: 2011, Positive unconditional cache size: 515, Negative cache size: 1176, Negative conditional cache size: 1079, Negative unconditional cache size: 97, Eliminated conditions: 1932889 ], Maximal queried relation: 13, Independence queries for same thread: 264942 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 44456, positive: 30825, positive conditional: 30825, positive unconditional: 0, negative: 13631, negative conditional: 13631, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 39723, positive: 30825, positive conditional: 30825, positive unconditional: 0, negative: 8898, negative conditional: 8898, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 39723, positive: 30825, positive conditional: 0, positive unconditional: 30825, negative: 8898, negative conditional: 0, negative unconditional: 8898, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 486, positive: 386, positive conditional: 0, positive unconditional: 386, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 486, positive: 326, positive conditional: 0, positive unconditional: 326, negative: 160, negative conditional: 0, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 160, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 160, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 144, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 39723, positive: 30439, positive conditional: 0, positive unconditional: 30439, negative: 8798, negative conditional: 0, negative unconditional: 8798, unknown: 486, unknown conditional: 0, unknown unconditional: 486] , Statistics on independence cache: Total cache size (in pairs): 486, Positive cache size: 386, Positive conditional cache size: 0, Positive unconditional cache size: 386, Negative cache size: 100, Negative conditional cache size: 0, Negative unconditional cache size: 100 ], Maximal queried relation: 0, Independence queries for same thread: 4733 - PositiveResult [Line: 75]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ServerThreadThread1of1ForFork0 with 1 thread instances CFG has 10 procedures, 57 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 38905.9ms, OverallIterations: 13, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 33381.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 72.1ms SsaConstructionTime, 224.9ms SatisfiabilityAnalysisTime, 2237.0ms InterpolantComputationTime, 1004 NumberOfCodeBlocks, 1004 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 980 ConstructedInterpolants, 0 QuantifiedInterpolants, 5907 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1089 ConjunctsInSsa, 603 ConjunctsInUnsatCore, 24 InterpolantComputations, 2 PerfectInterpolantSequences, 224/812 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 10 procedures, 57 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 719.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.8ms, PartialOrderReductionTime: 713.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...